Gauge for boiler tubes



v Dec. Z6, 1922.

1. s. WEEKS. GAUGE FR BOLER TUBES.

iov

Patented Dec. 26,

ttl liti lf lli .La

i eenen :cortan Teens.

To f/.ZZ to/tom t may concern.'

Be it known that l, Josnrii B. Wenns, a subject of the Kino of Great Britain, residing at North Sycney, Province of Nova Scotia, Canada, have invented certain new and useful Improvements in Gauges for Boiler Tubes; and l do hereby declare that the following is a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to malte and use the same.

The present invention relates to new and useful improvements in gauges for boiler tubes.

The primary object of the invention is the provision of a gauge for boiler tubes which will regulate the distance they protrudel through the boiler sheet when riveting` the same in position.

Another object of the invention is the provision of a gauge such as above referred to which can be adjusted so that the boiler tubes will project through the sheet a desired degree in order that they can be prop ery riveted in position.

A still further object of the invention is the provision of means for gripping the tube when holding the same in position to prevent its turning.

'A still further object of the invention is the provision of a device such as above referred to, which will be comparatively simple and inexpensive to manufacture, reliable and efficient in use, and readily operated.

With the above and other objects in view, the present invention resides in the novel features of construction, formations, con binatioiis and arrangements of parts to be hereinafter more fully described, claimed, and illustrated in the accoinpanying drawing forming a part of the present application, and in which;

Figure l a Derspectivc lView of the ded vice;

Fig. 2 is a side view of the within the boiler tube;

Fig. 3 is an enlarged longitudinal sectional lview taken through the ':eiitral por-- tion of the device;

Fig. l is a sectional. View taken transversely through the central portion thereof; and,

Fig. 5 is a perspective ping member removed.

Referring now to the accompanying drawsaine positioned L view of the giiping by corresponding charact throughout the several views,

S'DNl-EY, .NOVA SC'IIA, CANADA.

ers of reference the numeral 10 designates in general an ordinary boiler tube while 11 is a tube sheet.

gauge is shown at 12 and consists of taportion 13 having a shoulder 11i percd body foi-med intermediate the entf ,-1 My improved ls thereof and a handle l5 provided at the outer end.

The shoulder portion of the tapered body longitudinal enlarged to form a this recess 16 a locking device The locking` device 18 comp portion 19 and a cross head 20 111 and adjacent end 18 are provided with a recess 16 the inner end of which i-extension 17 and in 18 is mounted. rises a handle provided with a serrated surface 21. This member is pivoted as at 22 within the recess 16 and the head 2O is forced inwardly to retracted position by the spring 23. A sleeve 24 is slidably mounted on the shoulder 14': in position by the set screws 2 adjusted to and from the shoulder to permit the being, retained 5 which can be ends of the proper protrusion of the tube 10 beyond the outer wall of the sheet 11.

in use, the sleeve 24 is set position and serted into the end oi to the desired the tapered body portion 13 inthe tube, the protrudend thereof extending through the sleeve 2li. The tube is then forced until the end of the sleeve engages the outer face of the sheet 11 and the gripping` member 2O is then forced into engagement with of the tube 10 which prevents the inner side the tube from turning while the opposite end thereof is being riveted in position.

From the foregoing description, taken in connection with the accompanying' drawing,

it will be manifest that a gauge for tubes is provided. which will fulfill all necessary requirements of such boiler of the a. device, and

it slumld be understood iu this connection that various nA or changes details of construction can within the scope without depa V` fro in. th o in the specific be resorted to of the appended claims',

spirit or saw riliciug any of the advantages of the uvei'iti ou lilas/ing' thus fully described the invention,

what if claim as new and by Letters Patent is desire to protect formed upon said body portio n, a sleeve sur` ioo rounding said shoulder, a lever pivoted to said body, and a gripping device at one end of said lever for engaging a boiler tube.

2. rlhe herein described apparatus comprising a tapered body port-ion having a handle formed at one end thereof, a shoulder formed upon said body portion, ra sleeve adjustable upon said shoulder and a griping device for engaging a boiler tube;

3. rl`he herein described apparatus comprising a tapered body portion, ahandle formed at one-end thereof, a shoulder interposed between the body portion and the handle, a sleeve adjustable upon said shoulder, said body portion having a groove therein, a locking device mounted in said groove, and means for forcing the locking device outwardly from the tapered body portion, substantially as and for the purposes set forth.

4. The herein described apparatus comprising a tapered body portion, a shoulder formed thereon, a handle projecting from thefbody portion, a sleeve adjustable upon said shoulder,. set screws carried by the sleeve for engagement with the shoulder, said body portion having a slot therein, a gripping member pivoted in the slot, and a handle extending from the gripping member for forcing` the gripping v.member outwardly, as and for thepurposes'set forth.

5. The-.herein described apparatus coml prising a tapered body portion, a slot pro* vided in sa-id-bodygportion and having one end enlarged forming a T, a gripping member having a serratedT-head provided in the slot, `a shoulder formed upon the body portion, a sleeve vslidable upon said shoulder forv through the sleeve and engaging the shoulder for locking` adjustment, set screws,:passingy a lhandle formed -upon the sleeve in position,

for forcing the latter the kgripping member:

outwardly, and a spring interposed between the handle of the gripping member and the handle ofthe apparatus for forcing, the gripping member .toV inoperative 1 position;

ln witness whereof l have hereunto set my hand.

JOSEPH' BENJTIM'AN WEEKS. 

